SC310
User’s Manual
139
10.7.2 Making a recording
A recording consists of making a measurement and storing a series of functions with a
certain periodicity in the memory. These functions and periodicity are specified, for each
mode, in the recording setting. The main difference between the different kinds of recording
lies in the 'number of functions / storing time' compromise. See section10.7.4.
Before beginning a recording, make sure there is no measurement in progress ( ).
To begin a recording, press
. The screen will display the kind of recording together with
the register number. Next the functions selected for the type of recording will be saved
periodically in the memory until you stop the recording by pressing
.
During the
recording process, the measurement in progress icon ( ) will flicker.
10.7.3 Time synchronisation
The SC310 allows you to begin recording on the hour (hh:00:00). To access this option,
select SETTING
Î
RECORDING
Î
TIME SYNCHRONISATION from the SC310 menu.
Once the setting has been made, all recordings will begin on the hour. In other words, once
recording has been set in motion, the SC310 screen will display the message TIME
SYNCHRONISATION and will wait until the built-in clock reaches the o’clock time to begin
displaying and saving data.
10.7.4 Kinds of recording
10.7.4.1 Recording in Vibration mode
Through the SETTINGS
Î
RECORDING
Î
RTA RECORDING option, in which by means
of the following options you may set the periodicity and functions to be stored in the memory:
•
T functions
: once each evaluation time T has come to an end, the following values are
stored in the memory:
o
Average acceleration (RMS) with consecutive evaluation time T for one-third
octave band centred in the frequencies 1, 1.25, 1.6, 2, 2.5, 3.15, 4, 5, 6.3, 8,
10, 12.5, 16, 20, 25, 31.5, 40, 50, 63 and 80 Hz (without frequency weighting)
expressed in m/s
2
and as an acceleration level in dB referred to 10
-6
m/s
2
.
o
Average acceleration (RMS) with frequency weighting W
m
and evaluation time
T; expressed in m/s
2
and as an acceleration level in dB referred to 10
-6
m/s
2
.
o
Peak acceleration (PEAK) with frequency weighting W
m
and evaluation time T;
expressed in m/s
2
and as an acceleration level in dB referred to 10
-6
m/s
2
.
o
Crest factor (CF). Expressed in linear and logarithmic (in dB) format.
o
MTVV: Maximum Transient Vibration Value. With frequency weighting W
m
and
evaluation time T. Expressed in m/s
2
and as an acceleration level in dB
referred to 10
-6
m/s
2
.
